Rally Cross is a competitive event combining the driving skills of a Solo II with the loose surfaces of a PRO Rally. Generally held on flat smooth ground a rally cross is designed to test a driver's ability to control his or her car rather than a test of sheer horsepower. Almost any car is eligible to compete, with the exceptions of open top vehicles and lifted pick-up trucks. Due to the resurgence of PRO Rally's popularity and the ease of access to coverage of the World Rally Championship, rally cross is experiencing huge growth across the country.